import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router)

/* 导入layout组件 */
import Layout from '@/layout'
import approvalsRouter from './modules/approvals'
import departmentsRouter from './modules/departments'
import employeesRouter from './modules/employees'
import permissionRouter from './modules/permission'
import attendancesRouter from './modules/attendances'
import salarysRouter from './modules/salarys'
import settingRouter from './modules/setting'
import socialRouter from './modules/social'
/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   if set true, item will not show in the sidebar(default is false)
 * alwaysShow: true               if set true, will always show the root menu
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
    roles: ['admin','editor']    control the page roles (you can set multiple roles)
    title: 'title'               the name show in sidebar and breadcrumb (recommend set)
    icon: 'svg-name'/'el-icon-x' the icon show in the sidebar
    breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
    activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
  }
 */

/**
 * constantRoutes
 * 静态路由 - 所有人都可以看到的页面
 * a base page that does not have permission requirements
 * all roles can be accessed
 */
// 静态路由规则
// this.$router.options.routes
export const constantRoutes = [
  {
    path: '/login',
    component: () => import('@/views/login'),
    hidden: true
  },

  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  },
  // 首页的规则
  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [
      {
        path: 'dashboard',
        name: 'dashboard',
        component: () => import('@/views/dashboard'),
        meta: { title: '首页', icon: 'dashboard' }
      }
    ]
  },
  // 上传页面的规则
  {
    path: '/import',
    component: Layout,
    // hidden: true,
    children: [
      {
        path: '',
        name: 'import',
        component: () => import('@/views/import')
        // meta: { title: '上传', icon: 'dashboard' }
      }
    ]
  }
  // 404 页面 这句一定要放在最后
  // { path: '*', redirect: '/404', hidden: true }
]
//  动态路由规则
export const asyncRoutes = [
  departmentsRouter,
  settingRouter,
  employeesRouter,
  permissionRouter,
  approvalsRouter,
  attendancesRouter,
  salarysRouter,
  socialRouter
]

const createRouter = () => new Router({
  // 开启历史模式路由, 需要后端支持
  mode: 'history', // require service support
  scrollBehavior: () => ({ y: 0 }),
  // 动态路由和静态路由合并
  routes: [
    ...constantRoutes // 静态路由, 不受权限控制的路由
    // ...asyncRoutes // 动态路由,是受权限控制的
  ]
})

const router = createRouter()
// 做路由覆盖的工作的--- 权限设置---- 挖坑
// 后期涉及到路由权限 再来看下面的代码
// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
export function resetRouter() {
  const newRouter = createRouter()
  router.matcher = newRouter.matcher // reset router 重置路由的
}

export default router
